* {
    margin: 0;
    padding: 0;
    font-size: 16px;
    box-sizing: border-box;
}
li {
    list-style: none;
}
/* 登录界面 */
.login-box {
    width: 450px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    background-color: cornflowerblue;
    padding: 20px;
}
.user-input {
    width: 100%;
    height: 100px;
}
.user-input p {
    padding-left: 10px;
}
.user-input input {
    margin: 10px;
    width: 180px;
    height: 40px;
}
.avatar-ul {
    width: 100%;
    height: 270px;
    display: flex;
    flex-wrap: wrap;
}
.avatar-ul li {
    width: 20%;
    margin: 1%;
    height: 104px;
}
.avatar-ul li img {
    width: 100%;
    height: 100px;
}
.login-btn {
    width: 100%;
    text-align: center;
}
.login-btn button {
    width: 100px;
    height: 40px;
    text-align: center;
    line-height: 40px;
}
.now {
    border: 2px solid rgb(240, 11, 11);
}
